You have failed to show that it is an ideology. You have explained that you disagree with it, but that’s not the same thing.
It’s an empirical fact that living beings don’t like being hurt. Therefore, it avoiding hurt is good. That’s not an ideology, it’s reasoning based on observable facts. An ideological position would be “we need to hurt living beings to further our interests”. The ideological position involves those interests.
Seeing all living beings as equal (e.g. in terms of prioritising not harming them, just as I would prefer not to be harmed or to harm myself) is about not having an interest, and therefore is clearly not ideological. It’s also objectively true, because in terms of cosmological time, the consequences of all living beings become equal.